}
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}Ricoh GEN5 Water Printhead (Cable: 248mm) - MH5421
Brand: Ricoh
Tax excluded. Shipping calculated at checkout
Availability: In stock
%20is%20a%20genuine%20original%20Ricoh%20industrial%20piezoelectric%20printhead%20for%20water-based%20ink%20printing%20systems.%20With%201,280%20nozzles,%20a%207%20picoliter%20native%20drop,%20and%20a%20jetti...
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The Ricoh GEN5 MH5421 (Water, 248mm) is a genuine original Ricoh industrial piezoelectric printhead for water-based ink printing systems. With 1,280 nozzles, a 7 picoliter native drop, and a jetting frequency up to 60 kHz, it delivers high-speed, high-resolution aqueous output. This is the 248mm total-length version (J36002, replaces N221414P) with a 148mm cable, supporting up to 2 colours. Built for longevity — 100 billion actuations per nozzle service life. Every MH5421 we sell at Digiprint USA is 100% genuine original Ricoh Japan, covered by manufacturer warranty.
Technical Specifications
| Specification | Detail |
|---|---|
| Model | Ricoh GEN5 MH5421 (Water) |
| Ricoh part code | J36002 (replaces N221414P) |
| Total length | 248mm (head body + cable + connectors) |
| Cable length | 148mm |
| Total nozzles | 1,280 (4 × 320 nozzles) |
| Colour channels | Up to 2 colours |
| Nozzle density | Up to 600 NPI |
| Nozzle spacing | 0.1693 mm |
| Native drop volume | 7 pl |
| Drop volume range | 7 – 35 pl |
| Drop velocity | 7 m/s |
| Jetting frequency | Up to 60 kHz |
| Piezo type | D33 Stacked PZT |
| Temperature control | Integrated heater and thermistor — up to 80°C operation |
| Dimensions (excl. cable) | 89 × 25 × 69 mm |
| Head materials | SST, nickel alloy, epoxy adhesive |
| Nozzle plate surface | Coated SST |
| Ink compatibility | Water-based inks |
| Service life | 100 billion actuations per nozzle |
| Warranty | Manufacturer warranty included |
| Country of origin | Japan |
Ricoh GEN5 Variant Guide — Choosing the Right Head
| Model | Ink Type | Colours | Cable |
|---|---|---|---|
| MH5421 (this listing) | Water-based | 2 colours | 248mm total (148mm cable) |
| MH5420 UV 248mm | UV-curable / solvent | 4 colours | 248mm total (148mm cable) |
| MH5421F | Water-based (enhanced) | 2 colours | Varies — single-pass systems |
The MH5421 (water, 248mm) is for water-based 2-colour carriage systems. The MH5420 is the UV/solvent 4-colour version with the same cable length. The MH5421F is the newer generation water head with ink recirculation and enhanced bonding for single-pass printing systems. Always confirm your printer's required model and cable length before ordering — the heads are not interchangeable.
Compatible Printers
This printhead is compatible with the following water-based printers:
Contact our team with your printer make and model to confirm MH5421 248mm compatibility before ordering. Also confirm whether your printer requires 248mm or 500mm cable length before placing your order.
Warranty Notice
Due to the sensitive nature of industrial printhead components, we cannot accept returns, exchanges, or refunds once the printhead has been installed. All sales are final. Contact our team to confirm compatibility with your printer before ordering.
Why Buy from Digiprint USA
• 100% genuine original Ricoh MH5421 (J36002) — not compatible, not refurbished
• Manufacturer warranty included
• In stock in Doral, Miami FL — same day shipping before 2PM EST
• Ideal for Latin American sublimation and textile print shops using Miami freight forwarders
• Free technical support — we confirm MH5421 vs MH5420 vs MH5421F and correct cable length for your printer before you order
View our full range of genuine Ricoh GEN5 printheads including the MH5420 UV 248mm and the MH5421F.
Frequently Asked Questions
What is the difference between MH5421 and MH5420?
The MH5421 is optimised for water-based inks and supports up to 2 colour channels. The MH5420 is optimised for UV-curable and solvent inks and supports up to 4 colour channels. Both share the same 248mm total length and 7pl/60kHz specs. They are not interchangeable — always confirm your printer's ink system before ordering.
What is the difference between MH5421 and MH5421F?
The MH5421F is the newer generation — it adds an ink recirculation channel and enhanced bonding technology for improved durability with pigment, white, and fast-drying inks in single-pass systems. The standard MH5421 is the earlier generation for conventional scanning (carriage-based) wide-format printers. If your printer was designed for the MH5421, do not substitute the MH5421F without confirming compatibility with your printer manufacturer.
What does the 248mm refer to?
248mm is the total assembled length — head body + cable + connectors. The cable itself is 148mm long. The same MH5421 head is also available with a 500mm total cable (contact our team) for printers that require the longer cable. Always confirm which cable length your printer requires before ordering.
What is the Ricoh part code J36002?
J36002 is the current Ricoh part code for the MH5421 water printhead with 248mm total length. It replaces the previous code N221414P. If your service documentation references N221414P, J36002 is the correct current replacement.
Do you ship Ricoh GEN5 printheads to Latin America?
Yes — same day shipping from our Doral, Miami FL warehouse. Our Miami location is ideal for Latin American sublimation and textile print shops using freight forwarders in the Doral area.
